Datasheet

8
NOTE: Open drain waveforms t
PLZ
and t
PZL
are the same as those for three-state shown on the left. The test circuit is Output R
L
=1kΩ to
V
CC
, C
L
= 50pF.
FIGURE 5. HC AND HCT THREE-STATE PROPAGATION DELAY TEST CIRCUIT
Test Circuits and Waveforms (Continued)
IC WITH
THREE-
STATE
OUTPUT
OTHER
INPUTS
T
IED HIGH
OR LOW
OUTPUT
DISABLE
V
CC
FOR t
PLZ
AND t
PZL
GND FOR t
PHZ
AND t
PZ
H
OUTPUT
R
L
= 1kΩ
C
L
50pF